1. Te tukanga whakauru BOB:
1. Te tukanga tuku BOB o HDV Phoelectron Technology LTD:
Ko te nuinga ki te patuiro i te mana whatu me te ōwehenga mate mapi kanohi o te mutunga tuku, me te kaiwhiwhi ki te whakatika i tona tairongo me te RSSI aroturuki.
Taupū tono BOB:
| whakamātautau | tawhā | whakaritenga | wae | nga korero | |||
| mahi | huanga | whakaahuatanga | Min. | Pato. | Max | ||
| Wāhanga patuiro | TxPower | Tx mana tuku | 1.2 | 1.5 | 1.8 | dBm | Mo te inenga motuhake, ka taea te whakatika i te taurangi kia rite ki nga mahi a BOSA |
| ExtRatio | ōwehenga mate | 9.5 | 12 | 14 | dB | ||
| Kanohi Ripeka | te whakawhitinga hoahoa kanohi | 45 | 50 | 55 | ％ | ||
| RxPoCalPoint_0 | Ko te whakatikatika Rx te ahuatanga tawhā tuatahi | -10 | -10 | -10 | dB | ||
| RxPoCalPoint_1 | Rx whakatikatika te ahua tawhā tuarua | -20 | -20 | -20 | dB | ||
| RxPoCalPoint_2 | Ko te whakatikatika Rx te ahuatanga tawhā tuatoru | -30 | -30 | -30 | dB | ||
| Te waahanga whakamatautau | TxPower | Tx mana tuku | 0.5 | 2.5 | 4 | dBm | Mo te inenga motuhake, ka taea te whakatika i te taurangi kia rite ki nga mahi a BOSA |
| TxPo_DDM | Te tuku i te mana whatu aroturuki | 0.5 | 2.5 | 4 | dB | ||
| DiffTxPower | Te whakawhiti i te rereketanga o te mana whatu aroturuki | -1 | 0 | 1 | ％ | ||
| ExtRatio | Te ōwehenga ngaronga tukunga | 9 | 11 | 14 | dB | Mo te inenga motuhake, ka taea te whakatika i te taurangi kia rite ki nga mahi a BOSA | |
| Kanohi Ripeka | te whakawhitinga hoahoa kanohi | 45 | 50 | 55 | dB | ||
| MataMargin | Mata Hoahoa Mata | 10 | 10 | 10 | dB | ||
| TxCurrent | te tukunga o naianei | 180 | |||||
| Naianei katoa | katoa o nāianei | 100 | 250 | 300 | |||
| Te tairongo | tairongo | -27 | -27 | ||||
2. Hoahoa hononga BOB o HDV Phoelectron Technology LTD.:
Ko te hoahoa hononga whakamatautau BOB tikanga, te whakamatautau kotahi-ara, te hononga o waho matatini, te attenuator, te mita hapa, te mita hiko, te CDR me etahi atu taputapu me hoko motuhake.Me whai rorohiko ia teihana mahi hei tautoko i te whakamatautau.
1. Te whakaurunga o nga taputapu whakamatautau BOB raupapa ES-BOBT8:
2. Ka taea te tautoko ki nga waahana 8 mo te whakamatautau BOB, Te mita hiko whakauru o roto me te attenuator, ka taea te whakaoti i te tuku me te tango i te patuiro me te whakamatautau i te wa ano;
3. Ko te mahi BERT whakauru me te 2xSFP + atanga puna marama, ka taea te tautoko i te 1.25G ~ 10G putanga tohu tohu, ki te whakarato i te puna marama tohu mo te whakamatautau BOB sensitivity;
4. Whakakotahitia te CDR Trigger ki waho, te whakaora i te tohu karaka a-roto, ka taea te whakarato i te tohu karaka e hiahiatia ana mo te whakamatautau hoahoa kanohi whatu;
5. Ka taea e te mita o te hiko te whakarite i a koe ake te whakarato i te kitenga whakaraeraetanga mana whatu.
Ko te raupapa whakamatautau BOB raupapa ES-BOBT8 e whakarato ana i te huinga katoa o nga otinga taputapu whakamatautau, ka taea te whakarato i te nuinga o nga waahana 8 o te whakamatautau ONU BOB.Ko te kaiwhakaatu BER me te puna marama, te attenuator, te mita hiko, te wehenga o te roangaru, te whakawhiti matapihi me etahi atu taputapu kua whakauruhia ki roto i te taputapu kotahi, me te rorohiko rorohiko whakamatautau BOB ngaio, ka taea te whakarato i te huinga katoa o nga otinga whakamatautau BOB.
2,Tikanga mahi taputapu:
Te mahi a te raupapa ES-BOBT8 o nga punaha taputapu BOB:
1.I roto i te tukanga whakaputa, tirohia mehemea he mea noa te mana o te tauranga whatu ONU i te waa tuuturu
2.Tirohia mehemea he tika te uara mana whatu kua panuitia e te tauranga whatu ONU.
Tikanga mahi o te punaha taputapu:
1. Ko te rorohiko rorohiko o runga i roto i te punaha whakahaere e hono ana ki te atanga USB o te SCM U1 (tauira C8051F340) na roto i te atanga USB i roto i te punaha whakamatautau ki te mohio ki te hononga tangata-miihini;
2. Ko te SCM U1 (tauira C8051F340) e whakahaere ana i te U3 (bit detector error chip VSC8228, signal generator), OLT module (PON SFP), ADC (i whakatinanahia e ADL5303 me AD5593), me DAC (i whakatinanahia e MAX4230 me AD5593) na roto i te IIC pahi.
3. Ka tukuna e te maramara moka hapa VSC8228 te tohu o te momo waehere kua tohua me te reiti e ai ki te tohutohu, ka peia te OLT ki te tuku i te tohu whatu o te momo waehere me te reiti ma te atanga SerDES.Ko te roangaru o te OLT i tukuna ko 1490nm, ka wehea te marama ki te waru ma te wehenga.I muri i te DAC mana attenuator VOA attenuates ki te mana whatu i tohua, ka hono ki te tauranga ONU optical.Ka panuihia e ONU te mana whatu e rite ana me te whakataurite ki te uara tuturu.
4. Tikanga whakatinana DAC: Ka tukuna e te SCM U1 (tauira C8051F340) nga raraunga DAC ki AD5593 na roto i te pahi I2C, he tauranga I/O o AD5593 te whakaputa tohu hiko, ka puta he tohu ngaohiko na roto i te whakakaha whakahaere MAX4230, ka whakamahia ki te titi whakaurunga ngaohiko o te attenuator VOA , na te marama e tukuna ana e te PON OLT module ka whakahekehia ki te mana whatu kua tohua, ka hono atu ki te tauranga whatu o te ONU.
5. Te tikanga whakatinana ADC: I muri i te marama o te ONU ka kitea e te PD (photodetector), ka whakaputahia e te PD nga awa tohu o nga rahi rereke i runga i te kaha o te tohu tohu, a ka huri ki te ngaohiko me te whanui tau. me te tino tika na roto i te kaitahuri logarithmic ADL5303.Ko te uara ka mohiotia e AD5593 ka huri hei tohu matihiko ma te pahi I2C ma te SCM U1 (tauira C8051F340) ka mutu ka whakaatuhia ki te atanga rorohiko manaaki.